I have a 95 Chevy 1500 truck with a 4.3l engine. I would like to make a cable to view the data, i just can't figure out which cable to make. I downloaded winaldl and bought the materials to make the 1 transistor cable on their site. But after researching i think winaldl will not work for my truck and i need the 2 transistor cable. The problem is i am unsure if this is correct, and i have not found a very clear diagram of how to make the 2 transistor cable. And also if winaldl will not work, what will?

 

Won't work, need at least a 2-transistor cable. Check here:
http://www.moates.net/gmecm/software.html

 

here are a couple of places that should work. i am currently working on a cable for my 94 gmc truck
http://www.techedge.com.au/vehicle/aldl8192/8192hw.htm
http://www.akmcables.com/aldlif.jpg
good luck
aaron